Tag Archives: Miocene

From AAAS: From Russia with Lovely Data Climate and the atmospheric concentration of CO2 are closely linked. Brigham-Grette et al. (p. 1421, published online 9 May) present data from Lake El’gygytgyn, in northeast Arctic Russia, that shows how climate varied between 3.6 and 2.2 million years ago, an important interval in the global cooling trend…

Guest post by Paul MacRae In June, a NASA climate study announced that the warm middle Miocene era, about 16 million years ago, had carbon dioxide levels of 400 to 600 parts per million. The coasts of Antarctica were ice-free in summer, with summer temperatures 11° Celsius warmer than today. The study concluded that today’s…

It seems Antarctica once had vegetation and had a lot of rain. This artist’s rendition created from a photograph of Antarctica shows what Antarctica possibly looked like during the middle Miocene epoch, based on pollen fossil data. Image credit: NASA/JPL-Caltech/Dr. Philip Bart, LSU › Full image and caption PASADENA, Calif. — A new university-led study…

Press Release 12-107 Today’s Climate More Sensitive to Carbon Dioxide Than in Past 12 Million Years Geologic record shows evolution in Earth’s climate system The phytoplankton Emiliania huxleyi offers clues about climate past, present and future. Credit and Larger Version Until now, studies of Earth’s climate have documented a strong correlation between global climate and…

[Note: this post (and a few others) was lost in WordPress, and I had no notification of its existence. While a bit dated, it is still valid – note to guest authors with WUWT WordPress privileges – when you submit something, be sure to notify me via email too – Anthony] Guest post by David…

From Brown University it seems we need a new variation on the popular bumper sticker: Over 65 million years North American mammal evolution has tracked with climate change Rise and fall of groups of fauna driven by temperature PROVIDENCE, R.I. — History often seems to happen in waves – fashion and musical tastes turn over…